Try Starving Anonymous, Aku no Hana, Apocalypse no Toride, Alice in Borderland, PIGPEN, Ajin, Juujika no Rokunin, Doubt (tonogai Yoshiki),Hiraeth Lies at the End of the Journey, and Himenospia. All of these are favorites of mine, and are closer to physiological horror if you are int that. Aku no Hana is the closest to oyasumi punpun, and Hiraeth Lies at the End of the Journey is closer to Orange.
Oh thank you it's perfect coz i like pychological horror(づ￣ ³￣)づ
Welcome :)
Asking this again...pls rec me some manga/manhwa with the same vibe as orange, oyasumi punpun, and annarasumanara. There kinda interesting